An impact socket includes a socket body having a first end and an opposing second end, the socket body defining a first fastener driving structure at the second end. The impact socket includes a collar assembly carried by the socket body, the collar assembly defining a second fastener driving structure. The collar assembly includes a support sleeve and a base sleeve that define a chamber configured to constrain movement of a securing mechanism relative to the socket body, the securing mechanism configured to selectively secure the collar assembly to the socket body when the collar assembly is disposed in at least one of a first position relative to the second end of socket body and a second position relative to the second end of socket body.

A socket includes a first and a second sleeve members. The first sleeve member has a first end for connecting to a driving tool and a second end having a first connecting portion for sleeving onto a first fastener, and has an internal space and an internal circumferential wall. The second sleeve member is movably inserted into the internal space and has an external circumferential wall and a second connecting portion connected together. The second connecting portion is for sleeving onto a second fastener whose size is different from a size of the first fastener. One of the external and the internal circumferential walls is tapered from the first end toward the second end to form a gap. The other one of the external and the internal circumferential walls has a restriction unit extending into the gap.

An electronic torque wrench with double display screens includes a main body having a shank. A front end of the shank has a working head. The shank is defined with a central vertical face in the longitudinal direction. The electronic torque wrench further includes a display unit having two display screens. The two display screens are respectively disposed on two sides of the central vertical face. The two display screens are disposed by an inclination and directed upward and outward, whereby a user can easily observe the torque value displayed on the display screens.

A socket is provided, including a first member, a second member and a third member. The second member is movably inserted within the first member. The third member is movably sleeved with the first member.

A socket structure with only a single positioning member includes: a sleeve body, a fitting member, a drive shaft, a first spring, a second spring and the positioning member. since the annular shoulder of the fitting member is abutted against by the annular protrusion of the drive shaft, the drive shaft can be prevented from detaching from the fitting member when pushed by the second spring. Besides, the single positioning member is provided for abutting against the positioning annular flange of the fitting member to prevent the fitting member from detaching from the sleeve body when pushed by the first spring. Therefore, the assembly of the socket structure can be completed by arrange one component (namely the positioning member) between the sleeve body, the fitting member, the drive shaft, the first spring, and the second spring, which reduces assembly and parts costs.

A socket may include a socket body comprising a fastener engagement aperture configured to receive at least a portion of a fastener and a forward sleeve affixed external to the socket body at a forward end of the socket body. The forward sleeve may be configured to rotate radially relative to the socket body, and translate axially relative to the socket body. The socket may also include a biasing member configured to urge the forward sleeve to translate axially relative to the socket body in a direction towards the forward end of the socket body. Further, the socket body may include an internal cavity, and the socket may include a magnet disposed within the internal cavity. The magnet may be configured to translate axially within the internal cavity relative to the socket body and be configured to magnetically attract the fastener to the forward end of the socket body.

A two-way retractable socket is provided, including an outer sleeve, having two spline holes, each of the two spline holes having a plurality of ribs which are circumferentially arranged in intervals and a plurality of engaging grooves which are circumferentially alternatively arranged with the plurality of ribs, the plurality of engaging grooves configured for receiving driving heads of objects in different dimensions; two inner sleeves, each of the two inner sleeves including a hexagonal hole and a plurality of engaging teeth arranged around the hexagonal hole and configured to be slidably received within the plurality of engaging grooves; two elastic members, respectively received in the two spline holes and biasing the two inner sleeves outwardly.

A threaded fastener, inserted into a hole in materials to be joined, receives a free-running collar (nut) with out-of-round duplex barrels. Spring-loaded twin sockets cradle the barrels and a restraining polygon key extends through the sockets and into a recess in the small face on the pin tail. Installation advances in tandem sequence; tightening before swaging. A machined groove with flat bottom and side rising at about 20 degrees from axial forms a boundary and partly reshapes crests from parallel to angular. Such inclination keeps the collar connected to the cavity of the larger of twin sockets throughout tangential tightening, rise of torque, displacement of crest material, recoil of the smaller socket on the end barrel, cessation of collar rotation and plunging torque. When recoil ends, radial torque on the smaller socket crushes and locks barrel material into underlying left hand helical troughs that interrupt the last few pin threads.

A fastener removal apparatus is configured for removing a nut from a threaded shank and includes a gearbox assembly, an outer socket, and a tubular sleeve member. The gearbox assembly has an input member, a first output member, a second output member, and a plurality of gears. The first output member and the second output member rotation in opposite directions about a longitudinal axis in response to rotation imparted to the input member. The outer socket extends between a first end defining a female polygonal opening and a second end engaged for concurrent rotation with the first output member. The tubular sleeve member extends between a first end defining a threaded opening for receiving threads defined by the threaded shank and a second end engaged for concurrent rotation with the second output member.

The invention provides a subsea torque tool (10) for a subsea vehicle system (such as an ROV), a drive head selection mechanism (30), and a method of use. The tool comprises a tool housing and a plurality of torque drive heads (22, 24, 26). The drive mechanism (17, 18, 20, 28) is operable to rotate the plurality of torque drive heads, and the drive head selection mechanism is used to select a drive head to impart a torque to a subsea device. The drive head selection mechanism comprises a rotary actuator (14, 32), and rotation of the rotary actuator effects axial movement of at least one of the plurality of drive heads between an operative position and an inoperative position. In another aspect, the drive head selection mechanism comprises an actuator operable from the exterior of the torque tool. In a preferred embodiment, the drive heads are sockets (22, 24, 26), and the selection mechanism comprises a rotary actuator and a cam mechanism. The at least one socket may be permitted to rotate with respect to the cam mechanism when a driving torque is applied to the torque sockets.